Robert Ridgway

Catalogue of the Aquatic and Fish-eating Birds Exhibited by the United States National Museum

Ornithology, Vol. 3 (Classic Reprint)

The Birds of North and Middle America, Vol. 10 (Classic Reprint)

The Birds of North and Middle America, Vol. 7: A Descriptive Catalogue of the Higher Groups, Genera, Species, and Subspecies of Birds Known to Occur in North America; Family Cuculidæ, Family Psittacidæ, Family Columbidæ (Classic Reprint)

Outlines of a Natural Arrangement of the Falconidae (Classic Reprint)

The Birds of North and Middle America, Vol. 5

The Ornithology of Illinois, Vol. 2

The Birds of North and Middle America, Vol. 1

The Birds of North and Middle America, Vol. 8: A Descriptive Catalogue of the Higher Groups, Genera, Species, and Subspecies of Birds Known to Occur in North America, From the Arctic Lands to the Isthmus of Panama, the West Indies and Other Islands of the

The Birds of North and Middle America, Vol. 9: A Descriptive Catalog of the Higher Groups, Genera, Species, and Subspecies of Birds Known to Occur in North America, From the Arctic Lands to the Isthmus of Panama, the West Indies and Other Islands of the C

The Birds of North and Middle America, Vol. 2: A Descriptive Catalogue of the Higher Groups, Genera, Species, and Subspecies of Birds Known to Occur in North America, From the Arctic Lands to the Isthmus of Panama, the West Indies and Other Islands of the

The Humming Birds (Classic Reprint)

Color Standards and Color Nomenclature (Classic Reprint)

Color Standards and Color Nomenclature (Large Text Classic Reprint)

Manual of North American Birds (Classic Reprint)

Manual of North American Birds (Large Text Classic Reprint)

The Birds of North and Middle America, Vol. 9 (Classic Reprint)

Birds of the Galapagos Archipelago (Classic Reprint)

The Birds of North and Middle America, Vol. 3: A Descriptive Catalogue of the Higher Groups, Genera, Species, and Subspecies of Birds Known to Occur in North America, From the Arctic Lands to the Isthmus of Panama, the West Indies and Other Islands of the

Nomenclature of North American Birds: Chiefly Contained in the United States National Museum (Classic Reprint)

The Ornithology of Illinois, Vol. 1

Nomenclature of Colors for Naturalists, And, Compendium of Useful Knowledge for Ornithologists (Classic Reprint)

Nomenclature of Colors for Naturalists, And, Compendium of Useful Knowledge for Ornithologists (Large Text Classic Reprint)

Die Nord-Amerikanische Vogelwelt